<?php

class wxpay_plugin
{
	static public $info = [
		'name'        => 'wxpay', //支付插件英文名称，需和目录名称一致，不能有重复
		'showname'    => '微信官方支付', //支付插件显示名称
		'author'      => '微信', //支付插件作者
		'link'        => 'https://pay.weixin.qq.com/', //支付插件作者链接
		'types'       => ['wxpay'], //支付插件支持的支付方式，可选的有alipay,qqpay,wxpay,bank
		'transtypes'  => ['wxpay','bank'], //支付插件支持的转账方式，可选的有alipay,qqpay,wxpay,bank
		'inputs' => [ //支付插件要求传入的参数以及参数显示名称，可选的有appid,appkey,appsecret,appurl,appmchid
			'appid' => [
				'name' => '公众号/小程序/开放平台AppID',
				'type' => 'input',
				'note' => '',
			],
			'appmchid' => [
				'name' => '商户号',
				'type' => 'input',
				'note' => '',
			],
			'appkey' => [
				'name' => '商户API密钥',
				'type' => 'input',
				'note' => 'APIv2密钥',
			],
		],
		'select' => [ //选择已开启的支付方式
			'1' => '扫码支付',
			'2' => '公众号支付',
			'3' => 'H5支付',
			'4' => '小程序支付',
			'5' => 'APP支付',
		],
		'note' => '<p>上方AppID填写已认证的公众号/小程序/开放平台应用皆可，需要在微信支付后台关联对应的AppID账号才能使用。</p><p>如需资金下发（如退款）功能，请将<a href="https://pay.weixin.qq.com/wiki/doc/api/tools/mch_pay.php?chapter=4_3" target="_blank" rel="noreferrer">API证书</a>放置于<font color="red">/plugins/wxpay/cert/</font>文件夹（或<font color="red">/plugins/wxpay/cert/商户ID/</font>文件夹）</p>', //支付密钥填写说明
		'bindwxmp' => true, //是否支持绑定微信公众号
		'bindwxa' => true, //是否支持绑定微信小程序
	];

	static public function submit(){
		global $siteurl, $channel, $order, $ordername, $sitename, $submit2, $conf;

		$urlpre = '/';
		if (!empty($conf['localurl_wxpay']) && !strpos($conf['localurl_wxpay'], $_SERVER['HTTP_HOST'])) {
			$urlpre = $conf['localurl_wxpay'];
		}
		
		if(checkwechat()){
			if(in_array('2',$channel['apptype'])){
				return ['type'=>'jump','url'=>$urlpre.'pay/jspay/'.TRADE_NO.'/?d=1'];
			}elseif(in_array('4',$channel['apptype'])){
				return ['type'=>'jump','url'=>$urlpre.'pay/wap/'.TRADE_NO.'/'];
			}elseif(in_array('1',$channel['apptype']) && $conf['wework_payopen'] == 1){
				return ['type'=>'jump','url'=>'/pay/qrcode/'.TRADE_NO.'/'];
			}else{
				if(!$submit2){
					return ['type'=>'jump','url'=>'/pay/submit/'.TRADE_NO.'/'];
				}
				return ['type'=>'page','page'=>'wxopen'];
			}
		}elseif(checkmobile()){
			if(in_array('3',$channel['apptype'])){
				return ['type'=>'jump','url'=>$urlpre.'pay/h5/'.TRADE_NO.'/'];
			}elseif(in_array('5',$channel['apptype']) && strpos($_SERVER['HTTP_USER_AGENT'], 'iPhone OS')!==false){
				return ['type'=>'jump','url'=>$urlpre.'pay/apppay/'.TRADE_NO.'/'];
			}elseif(in_array('2',$channel['apptype']) || in_array('4',$channel['apptype'])){
				return ['type'=>'jump','url'=>$urlpre.'pay/wap/'.TRADE_NO.'/'];
			}else{
				return ['type'=>'jump','url'=>'/pay/qrcode/'.TRADE_NO.'/'];
			}
		}else{
			return ['type'=>'jump','url'=>'/pay/qrcode/'.TRADE_NO.'/'];
		}
	}

	static public function mapi(){
		global $siteurl, $channel, $order, $conf, $device, $mdevice, $method;

		$urlpre = $siteurl;
		if (!empty($conf['localurl_wxpay']) && !strpos($conf['localurl_wxpay'], $_SERVER['HTTP_HOST'])) {
			$urlpre = $conf['localurl_wxpay'];
		}

		if($method=='app'){
			return self::apppay();
		}elseif($method=='jsapi'){
			return self::jspay();
		}elseif($method=='scan'){
			return self::scanpay();
		}
		elseif($mdevice=='wechat'){
			if(in_array('2',$channel['apptype'])){
				return ['type'=>'jump','url'=>$urlpre.'pay/jspay/'.TRADE_NO.'/?d=1'];
			}elseif(in_array('4',$channel['apptype'])){
				return self::wap();
			}else{
				return ['type'=>'jump','url'=>$siteurl.'pay/submit/'.TRADE_NO.'/'];
			}
		}elseif($device=='mobile'){
			if(in_array('3',$channel['apptype'])){
				return ['type'=>'jump','url'=>$urlpre.'pay/h5/'.TRADE_NO.'/'];
			}elseif(in_array('5',$channel['apptype'])){
				return ['type'=>'jump','url'=>$urlpre.'pay/submit/'.TRADE_NO.'/'];
			}elseif(in_array('2',$channel['apptype']) || in_array('4',$channel['apptype'])){
				return self::wap();
			}else{
				return self::qrcode();
			}
		}else{
			return self::qrcode();
		}
	}

	//扫码支付
	static public function qrcode(){
		global $siteurl, $channel, $order, $ordername, $conf, $clientip;

		if(in_array('1',$channel['apptype'])){

		$params = [
			'body' => $ordername,
			'out_trade_no' => TRADE_NO,
			'total_fee' => strval($order['realmoney']*100),
			'spbill_create_ip' => $clientip,
			'notify_url' => $conf['localurl'].'pay/notify/'.TRADE_NO.'/',
			'product_id' => '01001',
		];
		$wechatpay_config = require(PAY_ROOT.'inc/config.php');
		$client = new \WeChatPay\PaymentService($wechatpay_config);
		try{
			$result = $client->nativePay($params);
			$code_url = $result['code_url'];
		}catch(Exception $e){
			return ['type'=>'error','msg'=>'微信支付下单失败！'.$e->getMessage()];
		}
		}elseif(in_array('2',$channel['apptype'])){
			$code_url = $siteurl.'pay/jspay/'.TRADE_NO.'/';
		}elseif(in_array('4',$channel['apptype'])){
			$code_url = $siteurl.'pay/wap/'.TRADE_NO.'/';
		}else{
			return ['type'=>'error','msg'=>'当前支付通道没有开启的支付方式'];
		}
		return ['type'=>'qrcode','page'=>'wxpay_qrcode','url'=>$code_url];
	}

	//JS支付
	static public function jspay(){
		global $siteurl, $channel, $order, $ordername, $conf, $clientip, $method;
		
		if(!empty($order['sub_openid'])){
			if(!empty($order['sub_appid'])){
				$channel['appid'] = $order['sub_appid'];
			}else{
				$wxinfo = \lib\Channel::getWeixin($channel['appwxmp']);
				if(!$wxinfo) return ['type'=>'error','msg'=>'支付通道绑定的微信公众号不存在'];
				$channel['appid'] = $wxinfo['appid'];
			}
			$openid = $order['sub_openid'];
		}else{
			$wxinfo = \lib\Channel::getWeixin($channel['appwxmp']);
			if(!$wxinfo) return ['type'=>'error','msg'=>'支付通道绑定的微信公众号不存在'];
			$channel['appid'] = $wxinfo['appid'];

			//①、获取用户openid
			try{
				$tools = new \WeChatPay\JsApiTool($wxinfo['appid'], $wxinfo['appsecret']);
				$openid = $tools->GetOpenid();
			}catch(Exception $e){
				return ['type'=>'error','msg'=>$e->getMessage()];
			}
		}
		
		$blocks = checkBlockUser($openid, TRADE_NO);
		if($blocks) return $blocks;

		//②、统一下单
		$params = [
			'body' => $ordername,
			'out_trade_no' => TRADE_NO,
			'total_fee' => strval($order['realmoney']*100),
			'spbill_create_ip' => $clientip,
			'notify_url' => $conf['localurl'].'pay/notify/'.TRADE_NO.'/',
			'openid' => $openid,
		];
		$wechatpay_config = require(PAY_ROOT.'inc/config.php');
		$client = new \WeChatPay\PaymentService($wechatpay_config);
		try{
			$result = $client->jsapiPay($params);
			$jsApiParameters = json_encode($result);
		}catch(Exception $e){
			return ['type'=>'error','msg'=>'微信支付下单失败！'.$e->getMessage()];
		}
		if($method == 'jsapi'){
			return ['type'=>'jsapi','data'=>$result];
		}
		
		if($_GET['d']=='1'){
			$redirect_url='data.backurl';
		}else{
			$redirect_url='\'/pay/ok/'.TRADE_NO.'/\'';
		}
		return ['type'=>'page','page'=>'wxpay_jspay','data'=>['jsApiParameters'=>$jsApiParameters, 'redirect_url'=>$redirect_url]];
	}

	//手机支付
	static public function wap(){
		global $siteurl, $channel, $order, $ordername, $conf, $clientip;
		
		if(in_array('4',$channel['apptype']) && !isset($_GET['qrcode'])){
			try{
				$wxinfo = \lib\Channel::getWeixin($channel['appwxa']);
				if(!$wxinfo)return ['type'=>'error','msg'=>'支付通道绑定的微信小程序不存在'];
				$code_url = wxminipay_jump_scheme($wxinfo['id'], TRADE_NO);
			}catch(Exception $e){
				return ['type'=>'error','msg'=>$e->getMessage()];
			}
			return ['type'=>'scheme','page'=>'wxpay_mini','url'=>$code_url];
		}else{
			$code_url = $siteurl.'pay/jspay/'.TRADE_NO.'/';
			return ['type'=>'qrcode','page'=>'wxpay_wap','url'=>$code_url];
		}
	}

	//H5支付
	static public function h5(){
		global $siteurl, $channel, $order, $ordername, $conf, $clientip;

		$scene_info = [
			'h5_info' => [
				'type' => 'Wap',
				'wap_url' => $siteurl,
				'wap_name' => $conf['sitename']
			]
		];
		$params = [
			'body' => $ordername,
			'out_trade_no' => TRADE_NO,
			'total_fee' => strval($order['realmoney']*100),
			'spbill_create_ip' => $clientip,
			'notify_url' => $conf['localurl'].'pay/notify/'.TRADE_NO.'/',
			'scene_info' => json_encode($scene_info, JSON_UNESCAPED_UNICODE),
		];
		$wechatpay_config = require(PAY_ROOT.'inc/config.php');
		$client = new \WeChatPay\PaymentService($wechatpay_config);
		try{
			$result = $client->h5Pay($params);
			$redirect_url=$siteurl.'pay/return/'.TRADE_NO.'/';
			$url=$result['mweb_url'].'&redirect_url='.urlencode($redirect_url);
			return ['type'=>'jump','url'=>$url];
		}catch(Exception $e){
			return ['type'=>'error','msg'=>'微信支付下单失败！'.$e->getMessage()];
		}
	}

	//小程序支付
	static public function wxminipay(){
		global $siteurl, $channel, $order, $ordername, $conf, $clientip;

		$code = isset($_GET['code'])?trim($_GET['code']):exit('{"code":-1,"msg":"code不能为空"}');

		$wxinfo = \lib\Channel::getWeixin($channel['appwxa']);
		if(!$wxinfo)exit('{"code":-1,"msg":"支付通道绑定的微信小程序不存在"}');
		$channel['appid'] = $wxinfo['appid'];
		
		//①、获取用户openid
		try{
			$tools = new \WeChatPay\JsApiTool($wxinfo['appid'], $wxinfo['appsecret']);
			$openid = $tools->AppGetOpenid($code);
		}catch(Exception $e){
			exit('{"code":-1,"msg":"'.$e->getMessage().'"}');
		}
		$blocks = checkBlockUser($openid, TRADE_NO);
		if($blocks)exit('{"code":-1,"msg":"'.$blocks['msg'].'"}');

		//②、统一下单
		$params = [
			'body' => $ordername,
			'out_trade_no' => TRADE_NO,
			'total_fee' => strval($order['realmoney']*100),
			'spbill_create_ip' => $clientip,
			'notify_url' => $conf['localurl'].'pay/notify/'.TRADE_NO.'/',
			'openid' => $openid,
		];
		$wechatpay_config = require(PAY_ROOT.'inc/config.php');
		$client = new \WeChatPay\PaymentService($wechatpay_config);
		try{
			$jsApiParameters = $client->jsapiPay($params);
			exit(json_encode(['code'=>0, 'data'=>$jsApiParameters]));
		}catch(Exception $e){
			exit(json_encode(['code'=>-1, 'msg'=>'微信支付下单失败！'.$e->getMessage()]));
		}
	}

	//APP支付
	static public function apppay(){
		global $siteurl, $channel, $order, $ordername, $conf, $clientip, $method;

		$params = [
			'body' => $ordername,
			'out_trade_no' => TRADE_NO,
			'total_fee' => strval($order['realmoney']*100),
			'spbill_create_ip' => $clientip,
			'notify_url' => $conf['localurl'].'pay/notify/'.TRADE_NO.'/',
		];
		$wechatpay_config = require(PAY_ROOT.'inc/config.php');
		$client = new \WeChatPay\PaymentService($wechatpay_config);
		try{
			$result = $client->appPay($params);
			if($method == 'app'){
				return ['type'=>'app','data'=>$result];
			}
			$param = [
				'nonceStr' => $result['noncestr'],
				'package' => $result['package'],
				'partnerId' => $result['partnerid'],
				'prepayId' => $result['prepayid'],
				'timeStamp' => $result['timestamp'],
				'sign' => $result['sign'],
			];
			$code_url = 'weixin://app/'.$result['appid'].'/pay/?'.http_build_query($param);
			return ['type'=>'qrcode','page'=>'wxpay_h5','url'=>$code_url];
		}catch(Exception $e){
			return ['type'=>'error','msg'=>'微信支付下单失败！'.$e->getMessage()];
		}
	}

	//付款码支付
	static public function scanpay(){
		global $siteurl, $channel, $order, $ordername, $conf, $clientip;

		$params = [
			'body' => $ordername,
			'out_trade_no' => TRADE_NO,
			'total_fee' => strval($order['realmoney']*100),
			'spbill_create_ip' => $clientip,
			'auth_code' => $order['auth_code'],
		];
		$wechatpay_config = require(PAY_ROOT.'inc/config.php');
		$client = new \WeChatPay\PaymentService($wechatpay_config);
		try{
			$result = $client->microPay($params);
			processNotify($order, $result['transaction_id'], $result['openid']);
			return ['type'=>'scan','data'=>['type'=>$order['typename'], 'trade_no'=>$result['out_trade_no'], 'api_trade_no'=>$result['transaction_id'], 'buyer'=>$result['openid'], 'money'=>strval(round($result['total_fee']/100, 2))]];
		}catch(\WeChatPay\WeChatPayException $e){
			$err_code = $e->getErrCode();
			if($err_code == 'SYSTEMERROR' || $err_code == 'USERPAYING'){
				if($err_code == 'USERPAYING') sleep(2);
				$retry = 0;
				$success = false;
				while($retry < 6){
					sleep(3);
					try{
						$result = $client->orderQuery(null, TRADE_NO);
					}catch(Exception $e){
						return ['type'=>'error','msg'=>'微信支付失败！订单查询失败:'.$e->getMessage()];
					}
					if($result['trade_state'] == 'SUCCESS'){
						$success = true;
						break;
					}elseif($result['trade_state'] != 'USERPAYING'){
						return ['type'=>'error','msg'=>'微信支付失败！订单超时或用户取消支付'];
					}
				}
				if($success){
					processNotify($order, $result['transaction_id'], $result['openid']);
					return ['type'=>'scan','data'=>['type'=>$order['typename'], 'trade_no'=>$result['out_trade_no'], 'api_trade_no'=>$result['transaction_id'], 'buyer'=>$result['openid'], 'money'=>strval(round($result['total_fee']/100, 2))]];
				}else{
					try{
						$client->reverse(null, TRADE_NO);
					}catch(Exception $e){
					}
					return ['type'=>'error','msg'=>'微信支付失败！订单已超时'];
				}
			}
			return ['type'=>'error','msg'=>$e->getMessage()];
		}catch(Exception $e){
			return ['type'=>'error','msg'=>'微信支付下单失败！'.$e->getMessage()];
		}
	}

	//支付成功页面
	static public function ok(){
		return ['type'=>'page','page'=>'ok'];
	}

	//支付返回页面
	static public function return(){
		return ['type'=>'page','page'=>'return'];
	}

	//异步回调
	static public function notify(){
		global $channel, $order;

		$isSuccess = true;
		$wechatpay_config = require(PAY_ROOT.'inc/config.php');
		try{
			$client = new \WeChatPay\PaymentService($wechatpay_config);
			$data = $client->notify();
			if($data['out_trade_no'] == TRADE_NO && $data['total_fee']==strval($order['realmoney']*100)){
				processNotify($order, $data['transaction_id'], $data['openid']);
			}
		}catch(Exception $e){
			$isSuccess = false;
			$errmsg = $e->getMessage();
		}

		$client->replyNotify($isSuccess, $errmsg);
	}

	//退款
	static public function refund($order){
		global $channel;
		if(empty($order))exit();

		$params = [
			'transaction_id' => $order['api_trade_no'],
			'out_refund_no' => $order['refund_no'],
			'total_fee' => strval($order['realmoney']*100),
			'refund_fee' => strval($order['refundmoney']*100),
		];
		$wechatpay_config = require(PAY_ROOT.'inc/config.php');
		$client = new \WeChatPay\PaymentService($wechatpay_config);
		try{
			$result = $client->refund($params);
			$result = ['code'=>0, 'trade_no'=>$result['transaction_id'], 'refund_fee'=>$result['refund_fee']];
		} catch(Exception $e) {
			$result = ['code'=>-1, 'msg'=>$e->getMessage()];
		}
		return $result;
	}

	//转账
	static public function transfer($channel, $bizParam){
		if(empty($channel) || empty($bizParam))exit();

		$money = strval($bizParam['money'] * 100);
		$wechatpay_config = require(PLUGIN_ROOT.'wxpay/inc/config.php');
		try{
			$client = new \WeChatPay\TransferService($wechatpay_config);
			if($bizParam['type'] == 'bank'){
				$bank_code = self::getBankCode($bizParam['payee_account']);
				$result = $client->transferToBank($bizParam['out_biz_no'], $bizParam['payee_account'], $bizParam['payee_real_name'], $bank_code, $money, $bizParam['transfer_desc']);
				return ['code'=>0, 'status'=>1, 'orderid'=>$result['payment_no'], 'paydate'=>date('Y-m-d H:i:s')];
			}else{
				$result = $client->transfer($bizParam['out_biz_no'], $bizParam['payee_account'], $bizParam['payee_real_name'], $money, $bizParam['transfer_desc']);
				return ['code'=>0, 'status'=>1, 'orderid'=>$result['payment_no'], 'paydate'=>$result['payment_time']];
			}
		}catch(\WeChatPay\WeChatPayException $e){
			$result = $e->getResponse();
			return ['code'=>-1, 'errcode'=>$result['err_code'], 'msg'=>$e->getMessage()];
		}catch(Exception $e){
			return ['code'=>-1, 'msg'=>$e->getMessage()];
		}
	}

	//转账查询
	static public function transfer_query($channel, $bizParam){
		if(empty($channel) || empty($bizParam))exit();
		$wechatpay_config = require(PLUGIN_ROOT.'wxpay/inc/config.php');
		try{
			$client = new \WeChatPay\TransferService($wechatpay_config);
			if($bizParam['type'] == 'bank'){
				$result = $client->queryBank($bizParam['out_biz_no']);
				$result['payment_amount'] = $result['amount'];
				$result['payment_time'] = $result['pay_succ_time'];
			}else{
				$result = $client->transferQuery($bizParam['out_biz_no']);
			}
			if($result['status'] == 'SUCCESS'){
				$status = 1;
			}elseif($result['status'] == 'FAILED' || $result['status'] == 'BANK_FAIL'){
				$status = 2;
			}else{
				$status = 0;
			}
			return ['code'=>0, 'status'=>$status, 'amount'=>round($result['payment_amount']/100, 2), 'paydate'=>$result['payment_time'], 'errmsg'=>$result['reason']];
		}catch(Exception $e){
			return ['code'=>-1, 'msg'=>$e->getMessage()];
		}
	}

	static private function getBankCode($bankcard){
		$bank_info = getBankCardInfo($bankcard);
		$bank_code_arr = json_decode(file_get_contents(PLUGIN_ROOT.'wxpay/inc/bankcode.json'), true);
		if(isset($bank_code_arr[$bank_info['bank_code']])){
			return $bank_code_arr[$bank_info['bank_code']];
		}else{
			return '';
		}
	}
}